Uncaught (in promise) TypeError: Cannot read property 'setState' of undefined [duplicate]

Answer 1

this within a standard function is usually determined by how it's called, not where the function was created. So this in the callback function here is not the same as this outside it:

getdata(){
    axios.get('/getactions')
        .then(function (data) {
            console.log(data.data);

            this.setState({
                status:data
            })
        })
}

Arrow functions, however, close over the this of their context, so:

getdata(){
    axios.get('/getactions')
        .then(data => {                // <== Change is here
            console.log(data.data);

            this.setState({
                status:data
            })
        })
}